Automatic fuel-supply means for boilers



April 10, 1928. 1,666,027

- R. H. BEAUMONT AUTOMATIC FUEL SUPPLY MEANS FOR BOILERS Filed Oct. 7,1926 4 Sheets-Sheet 1 lira/ME).

April 10, 1928. 1,666,027

R.H.BEAUMONT AUTOMATIC FUEL SUPPLY, MEANS FOR BOILERS 4 Sheets-Sheet 2'Filed 001;. v, 1926 0 (5 sw uq Arrow En April 10,1928. 1,666,027

' R. H. BEAUMONT AUTOMATIC FUEL SUPPLY MEANS FOR BOILERS Filed Oct. 7,1926 4 Sheets-Sheet 3 Ami] 10, 1928.

v r 1,666,027 R. H. BEAUMONT AUTOMATIC FUEL SUPPLY MEANS FOR BOILERSFiled. Oct. '7, 1926 4 Sheets-Sheet 4 mm/a-ss: F/G. Z wry/70,?

W @5617 fisaamoh/ Patented Apr. 10, 1928.

entrain sra'rss wan-21 PATENT OFFICE.

ROBERT E. BEAUMONT, OF RADNOR, PENNSYLVANIA, ASSIGNOR TO B. H. BEAUMONTCOMPANY, OF PHILADELPHIA, PENNSYLVANIA,

VANIA.

A CORPORATION OF -1'ENNSYL- AUTOMATIC FUEL-SUPPLY MEANS FOR BOILERS.

Application filed October 7, 1926. Serial Ira-139,970.

The principal objects of the present invention are, first, to reduce thelabor required for supplying fuel to boilers and at the same time tosupply the boilers better and more evenly by reducing the personalelement of attention; and second, to provide cificient, reliable andcomparatively simple automatic fuel supply means for boilers whichrequire verylittle attention in the1r operation.

Other objects of the invention will appear from the followingdescription at the end of which the invention will be claimed. However,the invention will be described in connection with the accompanyingdrawings forming part hereof andin which Figure 1 is an elevational viewwith parts brokenaway of what may be regarded as the right hand end ofthe structure where one or more fuel bunkers'are located and showingalso the larry;

Fig, 2 is a cross sectional view showing one of the bunkers and also oneof the boiler extension hoppers which are located toward the left andalso showing the larry shifted to that location.

Fig. 3 is a top or plan view taken toward the left of the structure andshowing one of the boiler extension hoppers and also show.- ing thelarry shifted to that position.

Fig. 4 is a view drawn to an enlarged scale and showing automaticmechanism for discharging from the larry chute.

Fig. 5 is a top or plan view illustrating an intermediate reversingswitch.

Fig. 6 is a sectional view taken on the line 66 of Fig. 5.

Fig. 7 is a sectional view taken on the line 77 of Fig. 5, and

Fig. 8 is a view similar to Fig. 6 illustrating the parts in differentpositions.

In referring to the drawings please place Fig. 3to the left of Fig. 1with Fig. 2 in between because in that way the drawings are more easilyunderstood. In the drawings 1 are boiler extension hoppers of which onlyone is shown but in large plants there are a number of them. 2 arechuted fuel bunkers of which only one isshown and they are horizontallyspaced with relation to the boiler extension hoppers, for example, inthe drawings the bunkers 2 are toward the right and the extensions 1 aretoward the left and the bunkers are at a higher level than the hoppers.3 is a horizontal track which may be supported from above as by means ofsupports 4. This track is arranged beneath the chutes, generallyindicated at 5, of the bunkers andabove the extension hoppers 1. 6,generally, is a motor driven chuted larry arranged on the tracks 3and'provided with a motor operated gate 7, Fig.2. The hopper 8 of thelarry is suspended from the Wheeled truck 9 of the same by scalemechanism 10, Fig. 3, so that the contents of the larry can be weighted.11 are pendulum switches sus pended from the chute 12 of the larry 6,

*kept closed, but when one of these pendulum switches drop the gate'7 isopen and remains open until both of these switches are turned elther byriding onto the guide or onto freshly supplied fuel. It will beunderstood that either of the pendulum switches operates to cause thegate 7. to be opened, but both switches must be up to close gate. 15 isa reverslng switch mechanism carried by the larry 6 for reversing thedirection of its travel. 16 is a trip, Fig. ,3, on the track at theboiler extension hopper end of the travel of the larry toward the leftand it operates to set the reversing switch 15 whlch remains, by reasonof its construction and design, in set position until again shifted. 17,Figs. 3 and 5 to 8, is an intermediate reversing switch arranged on thetrack between the boiler extenison hoppers and the bunkers and it isadapted in one position to actv on the larry reversing switch 15 andsend the larry back to the boiler extension hop ers, and in the otherposition to let the ar go through to the bunkers. 18, general y, is.mechanism carried by the larry chute 12, Fig. 2, and it is responsiveto depletion of the fuel supply and it is adapted to open and reset thelntermediate reversing tion to remain at rest and to turn the switchlarry, Fig. 1,

. Upon the plate .19 hangs down the free end of the dog is up. The dog20 andprojecting arm of the plate 19 are'connected as by .a

chain 21. The intermediate reversing switch, Figs. 5 and 6, comprisesarms 22 and 23 rigid in respect to each other and. as a unit pivoted at24 to a stand havin limit stops 25 and 26. It may be said t at in Fig. 5the switch is shown in thrown pos1- tion. The arm 23 is higher than thearm 22 both at the top and bottom. The dog 20 is in the lead of thereversing switch 15 on the larry and in respect to the intermediatereversing switch.

the track, the dog 20 if in down position, as shown in Fig. 8 in fulllines, runs under the arm 23, and the switch 15 runs into the high arm23 which possesses suflicie'nt fric- 15 toward the left in Fig. 1,thereby reversing the direction of travel of the larry. However, if thedog 20 is in up position, as shown by dotted lines in Fig. 8, itcollides with the high arm 23 and turns the same into the position shownin Fig.5, withthe result that the switch 15 runs free from the top ofthe low arm 22 and the larry therefore continues to travel toward theright. the return or left hand'travel of the larry, the dog 20 will bedown for reasons hereinafter explained, and it will collide with the lowarm 22 and reset the intermediate reversing switch. The bunker chute is,

fitted with a manually operated cutofi' (gate 27, and it includes asection 28 pivote at 29, and counterweighted at 30, and the piv'- otalsection 28 isprovided with a discharge gate 31. If we assume that thepivotal section 28 is down as shown in full lines, the moving toward theright runs under the chute 28 with the result that the provision 32 onthe larrfy opens the gate 31, and the element 33 o the stopping andstarting switch on the larry runnmg under a projection 35 on the chutestops the larry. At about the same time the reversing switch 15 is setto start thelarry toward the left. The reversing switch 15 is set bycontact with one arm 36 of a centrally pivoted lever arranged on thetrack and having its other arm 37 connected by a cord 38 with thecounterweight arm 30. The two-armed plate 39 carried by the larrynormally occupies the position shown in Fig. 1, but when the larry isfull of fuel, this plate 39 is turned in such a way that its arm 40,contacting with the element 41 of the starting switch Assuming that thearm 23 is at right angles to I claim:

1. Automatic fuel su ply means for boilof the larry, starts the latteron its travel toward the left. 4

. The mode of operation may be describedas follows:

Fuel is supplied to the bunkers 2 of which there may be several, and itis conveyed by the larry to the boiler extension hoppers 1. Assumingthat the larry is full of fuel, it travels back and forth between theintermediate reversing switch 17 and the track trip 16, discharging'fuel into the stoker hoppers which require refilling automaticallythrough the instrumentality of the pendulum switches 11. However, whenthe larry hopper is empty, through the instrumentality of the plate 19and its connections, the intermediate reversing switch 17 is opened andthe larry goes through to the bunkers, and if the bunkers which it firstapproaches are empty their chutes are in u position as shown by dottedlinesv in F g. 1, so that the larry proceeds until it encounters abunker chute that is down, then throughthe instrumentality of theelements 32 and 35, the larry is stopped under the chute and receives asupply of fuel.

it is full the'fuel, acting on the element 39,

When

starts the larry back toward the boiler extension hoppers because theswitch 15 has. been properly positioned to accomplish that result by thearm 36, and because the starting element 41 has been 0 erated by the arm40. By a repetition of the described travel of the larry and operation!of the parts,- fuel is taken from the bunkers automatically andautomatically supplied to the extension hoppers. It will be obvious tothose skilled in the art to which the invention relates that modifications may be made in details of constructicirand arrangement and inmatters of mere form without departing from the spirit of the inventionwhich is not limited to such matters or otherwise than the prior art andthe appended claims may require.

ers chmprising a trac bunkers arranged above and toward one end of thetrack and having pivotal chutes, boiler ho per extensions arranged belowand towar the other end of the track, a power driven larry having apower operated discharge gate, means on the larry responsive to adepleted hop er supply and adapted to open the larry discharge gate,trip and intermediate switch mechanism for causing the larry to travelback and forth over the hoppers, mecha+ nism on the-larry responsive toits fuel supply and adapted to set the intermediate reversing switch tolet the larry go through to the bunkers, mechanism responsive to adepressed bunker chute and adapted to stop the larry and to set itsswitch mechanism ready for travel toward the hoppers, and

devices responsive to the contents of the tarry for starting it in thelast named direcion.

2. Automatic fuel supply means for boilers comprising a track, bunkersarranged above and toward one end of the track and having pivotalchutes, boiler hopper extensions arranged below and toward the other endof the track, a larry stopping and reversing switches and provided witha power operated discharge gate, means responsive to depleted boilerhopper fuel supplies and adapted to open andto close the larry hoppergate, a, trip and an intermediate reversing switch on the track at thelimits of travel of the loaded larry and adapted for cooperation withthe larry reversing switch, means on the larry responsive to depletionof its load and adapted to throw out the intermediate reversing switchand let the larry go throu h to the bunkers, and mechanism operate whendepressed and adapted to stop and fill and reverse and start the larryback to the boiler hopper.

3. Automatic fuel supply means for boilers comprising a track, bunkersat and above one end of the track, boiler hoppers at and below the otherend of the track, a power driven larry, automatic means for causing theloaded larry, to travel back and forth over the hoppers and to keep themsupplied with fuel, and automatic mechanism for causing an unloaded larrto travel to a full bunker and to be loaded therefrom and to go back tothe boiler hoppers.

4, Automatic fuel supply means for boil- 7 ers comprising boilerextension ho pers and chuted fuel bunkers in horizontal y spacedrelation and a horizontal track arranged beneath the bunkers and abovethe hoppers, a motor driven chute larry arranged on the tracks andprovided with a motor operated chute gate, endulum switches carried bthe larry and having starting and v by the bunker chutes extensionadapted reversing switch on the track between the boiler extensionhoppers and the bunkers and adapted in one position to act on the larryreversing switch and send the larry back to other position the boilerhoppers and in the to let the larry go t-hrough to the bunkers,mechanism carried by the larry chute and responsive to depletion of itsfuel supply and adapted to open and to reset the intermediate reversingswitch, a starting and stopping switch for the larry motor .responsiveto down position of a bunker chute to stop the larry and responsive tofull contents of the larry to start the larry, means on the larry foropening the gate provided on the bunker chute, and devices arranged onthe trackwand responsive to the down position of the bunker chute andadapted to operate the larry reversing switch to send the larry back tothe boiler extension hoppers.

5. In automatic fuel supply means for boilers, a track, bunkers aboveone end portion of the track, boiler hoppers beneath the other endportion of the track, a power driven larry having a reversing switch anda dog lifted and lowered in response to the contents of the larry, and apivotal interme diate reversing switch having two arms in fixed relationand of which one is at a. high level and of which the other is at lowlevel, said arms arranged for cooperation with said larry reversingswitch and dog.

ROBERT H. amour.

